My granddaughter's 2006 50cc is the same way after sitting even a short period, been that way since it was new. Now I don't even bother trying to start it without a shot of starting fluid. Give it a puff, and it's good to go. I do have to agree about getting rid of the old fuel if it's been sitting that long, and also you should change the plug, it's only a couple bucks.

My granddaughter's 2006 50cc is the same way after sitting even a short period, been that way since it was new. Now I don't even bother trying to start it without a shot of starting fluid. Give it a puff, and it's good to go.[/b]

Starter fluid got it running on the first try. Thanks Lump!

Wondering what the problem could be. I'm thinking the Pilot Jet is too small and its making the mixture too lean? Took awhile for the motor to idle down.

After the motor had warmed up, it was still running in high idle mode. So I backed out the idle screw about 4 complete turns until the rpm's dropped and it purred like a kitten. Sometimes its the simplest things...